Andbew j



(No Model.)

A. J. ENGLISH.

GARBURETOR. 8

No. 338,508. v Patented Jan. 5, 1886.

IIIII UNITED STATES PATENT OFFICE.

ANDREW J. ENGLISH, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF TO POWEL OROSLEY, OF SAME PLACE.

ICARBIURETOR.

' SPECIFICATION forming part of Letters Patent No. 333,508. dated January 5, 1886.

Application filed August '7, 1885.

To all whom it may concern.-

Be it known that 1, ANDREW J. ENGLISH, a citizen of the United States, residing at Oincinnati, Ohio, have invented new and useful Improvements in Carburetors, of which the following is a specification. My invention relates to carburetors or gasmachines in which a current of air is driven through the evaporating-chambers of a suitably-constructed tank, and becomes luminiferous by the absorption of vaporized naphtha or other volatile hydrocarbon, particularly to that class of such machines in which the carburetor is divided into compartments arranged one above another, the upper compartment being a reservoir for naphtha, which is admitted thence into the lower or carbureting compartments as needed, by a valve governed by a float, in a lower compartment, whose movement is regulated by the height of fluid therein. In the use of such machines, particularly in the winter months, owing to the non-homogeneous character of the carbureting-fiuid, a residuum of heavy and non-volatile fluid collects in the lower compartments and seriously impairs-the luminous quality of the gas produced; and a second feature of my invention seeks to remedy this difficulty.

To this end it consists in the provision of an extra or drainage reservoir beneath the carbureting-compartments,into which thisnonvolatile'residue may be drained and collected during the season of its formatiomwhence itmay be evaporated and utilized during the warmer months, and in the provision, also, of means, as hereinafter more fully described, for separating and collecting in said reservoir the sai residuum.

It also consists in the construction and arrangement of the feedregulating valve, by which the mechanism for such purpose is simplified and lightened'in weight, whereby the action is rendered more certain and efficient.

Mechanism embodying my invention is illustrated in the accompanying drawings, in which Figure l is a vertical section of my improved carbureting-tank; Fig. 2, an enlarged view of the air-regulatingsiphoning mechanism, omitting the feed-valve mechanism. Fig. 3 is a modification in the separating device for the residual gasoline.

Serial No. 173,843. (No model.)

The parts hereinafter referred to are designated in the drawings by reference-letters.

Referring now to the drawings, A designates myimproved oarbureting-tank, divided by horizontal partitions into chambers B O O D, to which I add a further compartment, E. The compartment B is the reservoir for the fresh gasoline; O O D, the ordinary carbureting-chambers, and E the final temporary reservoir for the heavy and less volatile residue. In these machines the air is admitted into the compartment D by an inlet-pipe from the pump, and aregulating-float, c, is there placed, controlling the feed-valve m, arranged in the bottom of the feed-reservoir B, whence the liquid flows downward, filling the successive compartments by means of the overflow-pipes a a.

The construction and arrangement of the connections for this purpose, according to my improvement, are as follows: An open pipe, of, is arranged, passing through the bottoms of chambers O O beneath the supply-valve m, which is a fiat disk sitting upon a hollow curb,'n, having a very thin upper edge. Its stem 0 passes down through suitable guides in a pipe, n, whose upper edge constitutes the curb a, into the chamber below, and is provided with a spiral spring; 8, by which it is held normally and positively seated. It is actuated by a standard, 0, rising in line with the valve-stem 0 from a lever, e", pivoted at a; to a supporting bracket and governed by a float, c. The standard 0 is provided with an enlarged head or plate, 0 for insuring contact with the valve-stem 0, and with a conical shield or umbrella-, p, to prevent the oil from entering the tube a when feeding downward. When the oil rises beyond a given height in the chamber D, thestandard 0' falls out of contact with the valve-stem o, and-the valve m is held seated by its springs. To prevent the access of dirt to the seat, the valve and seat are inclosed in a cage of fine meshed wiregauze.

The devices for collecting and siphoning ou the residual or heavy gasoline are as follows: The main inlet-pipe L from the pump for supplyingair to the machine enters the reservoirchamber E and communicates thence by one of two short pipes, L L, opening through the bottom of compartment Dand extended upward just sufliciently to clear the surface of the liquid in said compartment. These short pipes L L are both provided with valves d d of inverted cup-form, closing down over the mouth of the pipes and forming a seal with the surrounding liquid; but the operation and function of the valves, being different, require separate explanation.

The valve d covering the pipe L is a simple cup suspended in an inverted position by a pivoted lever, e, fulcrumed upon a bracketstand, I), and controlled by a lifting-rod,f, hung in a tube, F, extending from the compartment D upward through the tank to the surface of the ground, (these tanks being usually placed beneath the frost-line in the earth.) The tube F is provided with apertures 3 opening into the upper part of the reservoir B to allow air to enter from below as the liquid is fed out of the same into the carburetingchambers.

\Vhen the rod f is drawn up to one of its ultimate positions and secured as upon a retaining-pin, k, the valve d is closed, and the air which enters the compartment E is then compelled to pass through the pipe L, which, with its valve d, are arranged vertically beneath the tube F and the rodf, so that when the rod f is depressed (and the valve (1 thereby opened) the valve (1 will be held'downward on its seat by said rod f. The valve dis mounted upon a pivoted lever, e, fulcrumed upon a bracket-stand, b, the remote end of the lever e upholding and controlling the short end of a flexible capillary siphon,W, arranged as follows: The long end of the siphon dips downward into a tube, H,which rises just clear of the surface of liquid in the compartment D, and extends thence downward through the bottom of the reservoir E,where it is provided with a number of perforations opening into the reservoir. Adjacent to the tube H is a short tube, I, rising to the same height, but

resting upon the bottom of the compartment D, into which compartment it opens by perforations near the bottom. The tube I, as will be seen, communicates with the compartment D only at the bottom of the liquid contained therein, and hence only the heavy portion of the liquid finds access to it, although the liquid is maintained practically at the same or nearly the same height within as that outside its limits. The wick-siphon W is arranged so that when the valve d is closed the short end of the siphon is raised out of the liquid contents of the tube I, and is consequently inoperative; but when the valve d is open, the short end of the siphon is immersed and the siphon rendered operative. To secure the normal inoperativeness of the siphon, the valve end of the lever e is slightly overbalanced by a weight, w, by which the valve d is kept closed until raised by the influx of air through the tube L. To facilitate the action of the valve d, its lower edge is scalloped, as shown, by somewhat deep indentations, by which means the area of the eseapeopen'ing for air is enlarged as the valve rises and diminished as the valve falls, so that a considerable vertieal movement is allowed to the valve and to the lever e,which, as will readily be seen, also controls and regulates the action of the siphon W. As the siphon acts with more or less rapidity, according to the degree of immersion, the result is that when the machine is in active operation, supplying a number of gasbnrners, and the formation of residuum relatively more rapid, the siphoning action is correspondingly increased, and vice versa. It will also be seen that in the intervals of action, when the machine is not in use, the siphon ceases wholly to operate.

When the rodf is elevated, as shown in Fig. 2, and the valve (I allowed its free normal action, its operation is as described; but when the rod f is depressed, the valve d is held permanently to its seat, the valve (1 opened, and the air entering the machine passes freely through the other pipe L.

As long as the pump is in operation the valve (l continues raised, (when in action;) but should the pump cease to operate, the valve d automatically seats itself and elevates the siphon out of action.

In conclusion, it will be seen that in respect to the feed-valve its operating mechanism is extremely simple, and the connecting-levers usually employed are entirely avoided, the valve-stem connection being made indirectly with the float-lever without any friction of parts, and all liability to stick and become inoperative thereby avoided.

The valve d is intended to be used only in the cooler months of the year when the ab sorbent capacity of the atmosphere is reduced. By its use, in connection with the siphon W, the residuum or heavy gasoline is constantly being removed to the lower reservor, E,where it gradually accumulates.

During the warmer weather, when the absorbent capacity of the atmosphere is greater, the valve d and the siphonW are held out of operation, and the contents of the reservoir E are gradually taken up by the air and carried to the burners.

The modificationshown in Fig. 3 dispenses with the siphon W and the tube H, and substitutes an aperture, r, at the bottom of the tube I, with a short tube filled with wicking W to retard the flow outward. The aperture is controlled by a disk-valve, m", actuated by the lever e, as operated by the valve (1, as in case of the siphon, excepting that the connections are arranged to lift the valve m" simultaneously with the valve (1. This arrangement also operates well; but I prefer the first described.

I claim as my invention and desire to secure by'Letters Patent of the United States- 1. A carbureting-tank embodying in combination the ordinary carbureting-chambers in the path of the air-inflow, an outlet for the heavier gasoline from the lower carburetingchamber into the reservoir, and actuating devices for opening and closing the same automaticall y governed and regulated by the inflow of air into the machine, substantially as set forth.

2. In a carbureting-tank having areservoir for residuum, substantially as described, a capillary siphon, W, provided with mechanism for automatically bringing the same into operation when the machine is in operation, and preventing the action of the same when the machine is out of operation, substantially as and for the purpose set forth.

3. In a carbureting-tank having a reservoir, E, the tubes H I, siphon W, pivoted lever e, and air-valve d, combined substantially as and for the purpose set forth.

4. In a carbureting-tank having a reservoir, E, the siphon W, pivoted lever e, and valve cl, in combination with the valve d, pivoted 1ever 0, and regulating-rod F, substantially as set forth.

5. In a carbureting-tank embodying one or more carburetingchambers and a feedingreservoir arranged above the same, an independently-acting spring-seated valve controlling the feed-orifice, in combination with float mechanism, substantially such as described,

for lifting said valve by contact upon exhaustion of liquid from the lower chamber, as set 0 forth.

6. In a carbureting-tank embodying one or more carbureting-chambers and a feeding-res ervoir arranged above the same, a disk feedvalve seating flatwise upon an annular raised 3 5 edge or curb, and provided with a spring by which it is normally held seated, in combination with float mechanism by the temporary contact of which it is opened upon exhaustion of liquid in the lower chamber, substantially 40 as set forth.

7. In a carbureting-tank embodying one or more carbureting-chambers and a feeding-reservoir arranged above the same, the combination of theindependent spring-seated valve m, 5 and stem 0, with the pipe a standard 0, pivoted lever e", and float c, substantially as set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing wit- 5o nesses.

ANDREW J. ENGLISH.

Witnesses:

L. M. HOSEA, G. D. KERR. 

